Tag: JavaScript 101
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JavaScript 101: Construct the Document Object Mode (DOM)
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随着浏览器对 HTML 进行词法分析，它开始构建文档对象模型 (DOM) 树 As the Browser Tokenizes the HTML, It Begins to Construct the Document Object Model (DOM) Tree As the browser parses the HTML document, it converts the raw HTML into a more structured format known as the Document Object Model (DOM) tree. This tree-like structure is…
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JavaScript 101: Understanding How Browsers Parse HTML and Render Content
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理解浏览器如何解析HTML和渲染内容 Understanding How Browsers Parse HTML and Render Content The process by which a browser parses HTML and renders content is a critical part of how web pages are displayed to users. This process involves several steps, starting from the moment the browser receives an HTML document from the server,…
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JavaScript 101: Why Use the Transform Property
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为什么使用 Transform 属性？ Why Use the Transform Property? The transform property in CSS is a powerful tool that allows developers to manipulate the visual appearance of an element without affecting its layout. This ability makes transform particularly valuable for optimizing performance, especially in scenarios where animations or interactive elements need…
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JavaScript 101: What is Repaint
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什么是 Repaint（重绘）？ What is Repaint? Repaint, also known as a redraw, occurs when changes are made to an element’s appearance that do not affect its layout. These changes can include modifications to an element’s color, background, visibility, or other visual properties. Unlike reflow, repaint does not involve recalculating the layout…
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JavaScript 101: What is Reflow
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什么是 Reflow（重排）？ What is Reflow? Reflow, also known as layout or reflowing, is a process in which the browser recalculates the positions and sizes of elements in the Document Object Model (DOM) when the structure, size, position, or certain properties of elements change. Reflow is a costly operation because it…
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JavaScript 101: Browser’s Rendering Process
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浏览器的渲染过程 (Browser’s Rendering Process) 浏览器的渲染过程 The browser’s rendering process is a complex sequence of steps that the browser follows to convert HTML, CSS, and JavaScript into a visually rendered web page on the user’s screen. Understanding this process is crucial for web developers who want to optimize page loading times…
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JavaScript 101: How Tasks are Prioritized Within the Event Loop
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任务优先级 (Task Priority): How Tasks are Prioritized Within the Event Loop 任务优先级：任务在事件循环中的优先级 In JavaScript, the event loop is responsible for managing the execution of tasks, ensuring that they are processed efficiently and in the correct order. However, not all tasks are treated equally; some tasks have higher priority and are…
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JavaScript 101: Understanding Why and How Asynchronous Operations Work in JavaScript
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异步 (Asynchrony): Understanding Why and How Asynchronous Operations Work in JavaScript 异步：理解为什么以及如何在 JavaScript 中进行异步操作 Asynchrony is a core concept in JavaScript, allowing the language to perform tasks like network requests, file reading, and timers without blocking the main thread. Understanding why and how asynchronous operations work in JavaScript is crucial…
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JavaScript 101: How the Rendering Main Thread Works
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渲染主线程的工作原理 (How the Rendering Main Thread Works): Explanation of How the Main Thread Processes Tasks 渲染主线程的工作原理：解释主线程如何处理任务 The rendering main thread is a critical component of modern web browsers, responsible for processing the tasks necessary to render web pages. Understanding how the main thread works is essential for optimizing web performance…
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JavaScript 101: How to Check Chrome Task Manager to Understand Its Main Services and Processes
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如何检查 Chrome 任务管理器，并解释其主要服务和进程 Chrome Task Manager is a built-in tool in the Chrome browser that allows users to monitor and manage the processes and resources used by the browser. It provides detailed information about the different tasks running in Chrome, such as tabs, extensions, and background processes, and allows users…